# _*_ coding:utf-8 _*_
_author_ = 'hayley'
_date_ = '2018/6/18 15:33'
# 某班学生期末考试成绩，语文，数学，英语分别存储在3个列表中，同时迭代三个列表，极端每个学生的总分（并行）
from random import randint
math=[randint(60,100) for _ in xrange(40)]
eng=[randint(60,100) for _ in xrange(40)]
chi=[randint(60,100) for _ in xrange(40)]
total=[]
for m,e,c in zip(math,eng,chi):
total.append(m+e+c)
print total
# 某年级有4个班，某次考试每班英语成绩分别存储在四个列表中，依次迭代每个列表，统计全学年成绩高于90分人数(串行)
from itertools import chain
c1=[randint(60,100) for _ in xrange(40)]
c2=[randint(60,100) for _ in xrange(42)]
c3=[randint(60,100) for _ in xrange(42)]
c4=[randint(60,100) for _ in xrange(39)]
num=0
for i in chain(c1,c2,c3,c4):
if i >90:
num+=1
print num
